I'm using ShowBoundary to render the bounding region of scattered satellite scanner data with longitude/latitude positions. The data form a "swath" in 2-d space. Sometimes the data will have invalid positions. I have validity=0 set to bound "all data", but the resulting boundary is not contiguous. The boundary is apparently rendered in 4 segments, but only 2 of them are visible (the mostly vertical "sides" of the swath). If I eliminate all of the invalid positions manually (set the invalid positions array = 0B) prior to ShowBoundary, then the boundary will be rendered contiguously, and there is no problem.
Has anyone seen anything occur similar to this ? For me, this happens both in Open DX and the version 3.1.4 that I have access to.
